Valve-reversing gear.



C. L. HEISLBR. VALVE REVERSING GEAR. APPLICATION FILED 'AUG. 19, 1910.

7 SHEETS-SHEET 1.

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37 AND 38 INVENTO Patented Aug. 27, 1912. k

0. L. HEISLEBQ VALVE BEVERSING GEAR.

v APPLICATION FILED AUG. 19, 1910. v 1,,U86fl42. Patented Aug. 27, 1912.

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VALVE BEVERSING GEAR.

. A'PPLIOATION FILED AUG.19, 1910. v j 7 1,036,842, Patented Aug. 27,1912.

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m' WWW/y %M@ A TTOR/V E V G. L. HEISLER. VALVE REVERSING GEAR.

APPLICATION FILED AUG. 19, 1910. Q 1,086,842., Patented Aug. 27, 1912 7SHEETS-SHEET 4.

WITNESSES. Ill/VENTOR I QZ WQA 535% M fiTTO/M/EV G. L. HEISLER. VALVEEEVERSING GEAR. APPLICATION FILED AUG. 19, 1910. I 1,036,842, PatentedAug. 27, 1912.

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WIT/E883; I t/5M0 A TTOR/VEY G. L. HEISLER. VAIQVE REVERSING GEAR.

APPLIUAQTION FILED AUG. 19, 1910. 7 1,036,842, Patented Aug. 27, 1912.

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APPLICATION FILED AUG. 19, 191 0.

1,036,842., Patented Aug. 27, 1912.

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mm'issfs; I INVENTOR Arm/mix valve gear of locomotive and other engines,a it frequently becomes necessary to make comparatively slight changesin the point of I cut off, which changes, in some cases, may require anadjustment equivalent to the 3 movement of the reverse lever only fromone V; cultyis often experien'ced' in'endeavoring to 5 make such smalladjustments with the prior 1 forms of power reversing gears, by reasonof the fact that their construction is such as to necessitate a movementof the reverse lever andreversing cylinder piston correi spending. tothe closing, movement ofthel CHARLES L. HEISLER, 0F SGI-IENECTADY, NEWYORK.

VALVE-REVERSING GEAR Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed August 19, 1910. Serial No. 578,058.

To all whom it may concern:

Be it known that I, CiIAnLns L. HEISLER, of Schenectady, in the county.of ,Schenectady and State of New York, have invented a certain new anduseful Improvement in l Valve-Reversing Gear, of which lmprove- 1 latedcompound locomotive, illustrating an ment the following is aspecification.

My invention relates to power actuated reversing gears for locomotiveand other: engines, and 1ts Ob ect is to simplify and perfect theCODStI'HCtlOIl of mechanisms of I such type, and to provide meanswhereby a greater degree of refinement in the adjustment of desiredpoints of cut ofl may be at tained, and the perfect control of the valvegear be effected, with the exertion of a lesser degree of effort andattention on the' part of the engineer than in the operation of devicesheretofore ordinarily employed. The improvement claimed is fully setforth.

In properly controlling and adjusting the to t-he next'notch of thequadrant.

valve of the reversing cylinder, and consequently, as in the case of anyslow moving -motor of similar construction, the mecha-: nism becomesinactive or inoperative when said valve closes the reversing cylinderport, and until it is in mid position.- The amount i of uncontrolledmovement or loaf covered by such inactivity is measured by the totallength of the necessary lap of thevalve. It is obvious that, in ordert'oeffect the movement of its own piston, or that of the main reverse shaftto which itmay be connected. My invention is primarily designed toefl'ect this operation, as well as to lock and unlock the main reverseshaft bythe same independent movement which. closes or opens thereversing cyllnder.

valve port, thereby affording a perfect control, absolutely securelocking, and the maximum degree of refinement and ease of adjustment.

In the accompanying drawings: Figure 1 1s a diagrammatic side view of anarticu' application of my invention; Fig. 2, a side view, in elevation,of a reversing gear embodying my invention, mounted upon the guide yokeof a locomotive; Fig. 3, a plan or top view of the same; Fig. 1, 'a rearend view; Fig's.5,6, and 7 side, plan and rear end views, respectively,on an enlarged scale, of

'the reversing mechanism; Figs. '8, 9, and. 10,

detail views of the latch block for the main quadrant; Fig. 11, a sideview of the engineers operatlng levers, Fig. 12, a rear view I of thesame; Fig. 13, a horizontal section, hereinafter 1 on the line A A ofFig. 11; Fig. 14, atrttnsverse section through the liquid reservoirs,the casing of the valve for controlling flow therefrom, and thereversing cylinder, on the line Z) 19' of Figs. '15'and 16; Fig. 15, alongitudinal section through one of the liquid reservoirs and "thecasing of the valve for controlling the flow therefrom, showingthereversing cylinder partly in elevation and partly in section; Fig.16, a horizontal section through said reservoirs and valve casing, onthe line 0 c of Fig. 14; Fig. 17 a view, in elevation, of the port faceor inside face of the bushing in which the controlling valve of thereversing cylinder operates; Fig. 18, a. side view, in elevation, ofsaid valve; Fig. 19, a transverse section through the same, on the line(Z d of Fig. 18; Figs. 20, 21, and 22, transverse sections through saidvalve audits casing, on the lines 6 e, f, f, and g g, respectively, ofFig. 17: Fig. 23, a transverse section through a liquid reservoir and areversing cylinder, and a longitudinal section through the casing of thecontrolling valve, showing a structural modification in which the liquidreservoirs are located below the reversing cylinder to suit particularlocation and requirements of installation; Fig. 24, a side View, inelevation, of the construction shown 1n F1g. 23;

and Fig. 25, a plan view, partly in horizontal section. r g

My invention is herein exemplified as applied in h locomotive enginefitted with the drawings, the \Valschaert valve gear shown comprises theordinary link, 2, actuated by coupled, at

the eccentric crank rod, 2, coupled to its itstlower end, radius bar, 3,and combination lever, 4, coupled, at its upper end, to the radius bar,and adjacent thereto, to the stem, 5, of the distribution valve on theside of the locomotive nearer the observer, and its lower end, to thecross head, 11 in the usual manner. through the guide yoke, 6, whichsupports the cross head guide bars, 11, 11, and through the link, 2, theradius bar, 3, is coupled, by a link, 7, to a reverse arm, 8, fixed onthe reverse shaft, 1, of the locomotive. In the instant' shown, the arm,8, is formed integral with an upwardly projecting arm, 8, the twoconstituting a bell crank, and the arm, 8, carries on its upper end arectangular projection, 9, fitting a socket in the lower end of anemergency reverse lever, 10, projecting above the running board, 48, andprovided for the pur se of enabling the reversal of the engine to ii:effected manually, in the event of breakage or derange- 1-5, which matchthe versing cylinder,

ment of the power reversing mechanism constituting my invention,which'will be hereinafter fully described.

The guide yoke, 6, is secured to the main frame cross tie, 12, by meansof a vertical pad, 13, formed on the guide yoke and disposedparallelwith the track and cross head guides. To prevent excessivebolting stress,

due to strains from the cross head, the bolt ing face of the pad, 13, islocated vertically and as directly as possible above the guides, and thestressis further reduced by the gibs, 14, 14. The cross tie, 12,projects outwardly beyond the right hand ame member, 12, and is providedwith end flanges, H gibbed bolting faces of the guide yoke. Thisconstruction provides a rigid'and substantial support for a re- 16, andits accessories, hereinafter to be described, which, with a mainquadrant, 17, are mounted on the guide yoke. Link'trunnion bearings, 18,18*, are formed on the rear side of the'guide yoke, and it is preferablymade in two parts by dividing it in a horizontal plane passing throughthe axis of the reverse shaft, 1, so that, as shown in Figs. 2 to 7, itis provided with a removable upper section, 6. The entire reversing gearproper, comprising the reversing cylinder, voirs, 19, 19 reverse shaftand its arms. main quadrant, l7, and" their related members, is mountedon the guide yoke 6, and constitutes a simple, compact, and selfcontained unit, which is not affected by the expansion or springing ofparts, is independent of the boiler, andhis free from distortinfluences,tgjfwhihi-"the oldergngchw Referring to the,

After passing cab. of the locomotive,

16, liquid resernisms are subjected. It is consequently adapted toenable more precise and perfect movement to be imparted to the steamdistribution valves of the locomotive or other engine on which it isapplied, thereby insuring better steam economy and lower cost ofmaintenance, with resultant higher commercial efficiency.

The movements of the reverse shaft, 1, and its arms, 8, by which theradius bars, 3, of the valve gears on each side of the locomotive, areraised and lowered into and from the various positions required in thereversal of the direction of movement of the locomotive and theadjustment of the point of out off, are effected and controlled by theaction of air or other elastic fluid under pressure upon inelasticliquid contained in'two reservoirs adapted to be put into communicati nwith the reversing cylinder, 16,.within which a piston, 59, is of liquidto and from the reversing cylinder being. governed by an oscillatoryvalve, 20, manually operated by the engineer, through intermediateconnections with a controlling reverse or lap lever, 34, in the.

and also actuated by the movement of the piston, 59.

The relation of the reversing cylinder, 16, piston, 59, controllingvalve, 20, and liquid reservoirs, 19, 19*, as hereinafter described, issuch that liquid will flow from one side of the piston, 59, reservoir,19 or 19*, whenthe air pressure admitted through the upper end of thevalve, 20, acts upon the liquid in the other reservoir, and forces anequal amount of liquid against the opposite side of the piston; therebycausing the piston to move in the desired direction, at a speeddepending upon the amount of air pressure and port opening at the lowerend of the valve, 20, through which the liquid must flow. When areversal of motion is desired, the valve,-20, effects a reversal in thedirection of flow between the reservoirs and corresponding ends of thereversing cylinder; each time admitting air pressure on the top of theliquid in one reservoir, and permitting air to discharge from the top ofthe liquid in the other reservoir. Excepting for leakage,

v .85 fitted to reciprocate, the flow Y into the corresponding the totalamount of liquid is always the same. The reversing cylinder alwaysremains full of liquid, and eaclifliquid reservoir contains a variableamount which depends upon the position of the piston in the reversingcylinder.

As shown in vFigs. 14, 15, and 16, the reversing cylinder, 16, is castintegral with, and located below, two liquid reservoirs, 19, 19, setside by side, and a controlling valve casing, 19 placed vertically atone end of the llquid reservoirs. The capacity of each of the liquid'reservoirs is substantially greater thanthe displacement-of the piston,

nosecea 59, of the reversing cylinder, in order that the latter mayalways be kept full of liquid on both sides of the piston. The valvecasing, 19", is lined with a cylindrical bushing, 19, through the-upperportion of which, and through the casing, a pressure supply port, 33, isformed, said port being connected by a pipe with a source of supply ofelastic fluid under pressure, which. is preferably, though notnecessarily, compressed air,--this being readily available inlocomotives, and

.for facility of description, will be herein referred to as being theactuating fiuidpressure medium employed. An exhaust port, 33, extendsthrough the. bushing and easing, opposite the supply port, 33, and airports, 27 and 26, extend from the interior of the bushing to the liquidreservoirs, 19 and 19, respectively, on opposite sides of the exhaustport, 33*. The following ports also extend through the bushing andcasing, at

successively lower levels, viz: creeping ports 21,21, leading from theliquid reservoir, 19, to the interior of the valve bushing, 19, andcreeping ports, 21 21, leading from the liquid reservoir, 19, to theinterior of said bushing, all of said ports being located in the samehorizontal plane;

liquid ports, 24: and 25, leading, respectively, from the liquidreservoir, 19, and the liquid reservoir, 19 to the interior of the valvebushing; and cylinder ports, 31 and 32, leading from the interior of thevalve bushing to opposite ends of the reversing cylinder, 16. Anadjustable choke plug, 72,

into the cylinder port, 32, and is provided for limiting the maximumspeed of the piston of the reversing cylinder. It was found that whenthe ports in the lower end of the valve, 20, and its seat, were madesufliciently large to give the desired maximum speed to .the piston inthe reversing cylinder, they did not.provide an easy means for speedadjustment at the desired minimum or creeping speeds, for the reasonthat a very slight movement of the valve would give too large a portopening, and so high a degree of perfection in workmanship andmaintenance was required that the use of such ports on a locomotive wasnot desirable. To obviate the difficulty, the auxiliary set of verysmall or creeping ports, 21, 21", 21, and'.2l, above specified, whichare placed adjacenttcthe larger ports, 24 and 25, re-

spectively, are provided. The creeping ports open into the samepassages, and have the same functions, as the larger ports, with theexception that their small size causes the piston to move very slowlyfor a given valve movement. Narrow creeping ports or slots cut at rightangles into the larger orts would erform the same functions. ,eca'use oftheir relative position, the creepthe ports, 26 and 27, acts upon thetop of.

the liquid in the reservoir to which it is ad mitted, and forces saidliquid into the cylinder, thereby exerting its pressure on the side ofthe piston thereof against which it is applied. Peep glasses, 29, arefixed in the liquid reservoirs, to indicate the lowest permissibleliquid level therein.

Longitudinal recesses or cavities, 22 and 22, are formed in the face ofthe controlling valve, 20,-adjacent to its lower end,the cavity, 22,being'continuously in communication with the cylinder port, 31, andadapted to establish communication between said port and the liquidport, 24c, and the cavity, 22, being continuously in communication withthe cylinder port, 32, and adapted to establish communication betweensaid port and the liquid port, 25. Adjusting screws, 23 and 23, arefitted in the valve, 20, in the plane of the creeping ports, for thepurpose of regulating the rapidity of the flow of liquid through saidports, so that the piston speed for the creeping positions may bereduced to a desired minimum. A recess or cavity, 28, is formed in theface of the valve, 20, adjacent to its upper end, said recess beingcontinuously in communication with the exhaust port, 33*, andestablishing communication between said exhaust port and the liquidreservoir, 19, for exhaust from the latter, through the port, 27, orestablishing communication between said port and the liquid reservoir,19*, for exhaust from the latter, through the port, 26, accordingly asthe valve may be moved into one or the other of its operating positions.The valve, 20, is fixed upon a stem, 20, carrying an arm, 30, which iscoupled, by a floating rod, 52, bell crank lever 51, link, 49, lap arm,50, and reach rods, 37 and 38, with a controlling reverse or lap lever,34, and latch lever, 36, in the cab of the locomotive.

The air ports, 26 and 27 are opened earlier by the valve, 20, and areclosed later, than any of the lowerliquid ports. The air ports admit thenecessary supply of operating power in all positions of the valverelatively to the liquid ports, which control the movements of thepiston, the air ports acting as pressure supply throttles to provide forthe supply of, the proper amount of power at the proper times.

air from being When the valve is in mid or closed position, all portsare closed against air or other elastic fluid pres? sure at the upperend of the valve manquid pressure at --the lower end. When the 4 Yoaders valve lever, 30, is moved to one of the two creeping positions,indicated in Fig. 21, the valve cavity, 22, will register with thecreeping port, 21, and cylinder port, 31, or the valve cavity, 22*, withthe creeping port, 21', and cylinder port, 32, as the case may be. Insuch position of the valve, there will be considerable lead or openingof the cor responding air ports, 27 and 26, to the supply port, 33, onone side, and to the exhaust port, 33*, on the other. to 'efiect agreater spe'ed'of the reversing cylinder piston and of the connectedreversing gear, the lever, 30, is moved toward full speed position inthe direction desired and one or the other of the valve cavities, 22 or22 is thereby brought into register with the liquid port, 32, or withthe liquid port,

31, as the case may be, by'which a more 2 rapid flow of liquid underpressure to and from the opposite ends of the reversing cylinder isprovided.

From the foregoing, description, it will appear that the upper sectionof the valve, 20, supplies power to, and governs the directionof motionof, the piston, while the lower section of the valve merely controls thespeed and prevents piston movement when closed. The constructionsubstantially as above described, of controlling valve, fluid pressuresupply and exhaust ports,

" smaller 'li uid cree in 7" orts. and lar 'er liquid ports for higherspeed, together with the system of controlling levers and connectionshereinafter described, provides for two separate and distinct speedmovements, in

addition to the range obtained by the adjustment of the creeping portscrews, 23, 23, and the throttling of the liquid reservoir ports, 24 and25,1111 of which are absolutely controlled by 'the engineer by themanipula; tion of the small controlling reverse or lap lever, 34, in thecab.

Referring to .Figs. 1 l to 13 inclusive, the reverse or lap lever, 34,is pivotallynrount: ed upona quadrant bracket, 35, to the top of whichis fixed a toothed quadrant, 39, and a latch lever, 36, is pivoted on ahub, 34 projecting from the lever, 34, in the axi at line of the pivotalbearing thereof. The lower ends of the levers, 36 and 34, are, respectively, coupled to independent reach rods, 37 and 38, which arepreferably disposed ,one within the other as shown in Figs. 5 and 6, andthe levers, 36 and 34, interlock when the piston of the reversingcylinder is moving at the higher or full speeds. When thecontrollingvalve, '20, of the reversing cylinder, is placed in eithercreeping positlon, by the movement of its arm, 30, ,into one of thepositions, Cand D, indicated in Fig, 21, the latch lever, 36, issecurely locked to the quadrant, 39, by a. toothed latch block '40,formed in or fixed to the upper arm oi latch lever. A latchhandle, 45,is pit When it is desiredotally mounted on the lap lever, 34, and is areprovided to limit the movement of the lap lever, 34, relatively thereto.A stop lug, 46, 18 formed on the lap lever, 34, just above the level or"the latch block, 40, "when en-.

gaged with the quadrant, 9, to prevent the latch lever from beingunlocked, except when the lap lever has previously been placed in one orthe other of the creeping positions indicated in dotted lines in Fig.11.

hen the lap lever, 34, has been moved into either of the creepingpositions, pressure on the latch handle, 45, will lift the latch block,40, out of engagement with the quadrant, thereby permitting the latchisver to be moved, and placing the latch block in the path of the stoplug, 46, whereby the latch and lap levers are interlocked. F urthermovement of. the lap lever will, through the connections previouslyspecified, move the controllin valve, 30, into position to open one ortie other of the larger liquid reservoir ports, 24 and andimpart'to thereverse gear any desiredspeed up to a predetermined maximum.

Referring to Figs. 5 to 10 inclusive, the combination arm, 53, (which,together with the pivotally mounted bell crank, 51, con,- stitutes anarticulated floating-member) and the hell crank, 50, are pivotallymounted upon a pin, 58,-which projects from the vertical arm, 3, of threverse shaft. The bell crank 50 is a sup 'aleinentary floating member.The opposite end of the pin, 58, is coupled to the piston rod, 59 or"the reversing cylinder, and the power requisite for reversing andadjusting the valve gear is thereby transmitted from the piston, 59, ofthe reversing cylinder, to the reverse shaft, 1. A latch block, 63,having teeth which engagethe notches of the main quadrant, 17, which, asbefore stated, is supported on the guide yoke, 6, and a spring box, 61,located below the quadrant, are

fitted to slidelongitudinally on the upper arm, 8*, of the reverseshaft, the latch block being provided with beveled edges, abuttingagainst corresponding guide faces on the re verse arm. a s rin slot 63and provided with a clam p n b 7 7 n J- I bolt, 02, to take up wear orthe latch block. Springs, 65, fitted 1n the spring box, 61,

hear thereon and on a block, 6G which is ,iiized to the latch block, 60,and bears on two pins, 64, 64, projecting from the bell crank, 56thereby normally holding the latch hicce and reverse arm, 8 inengagement with the main q dranhi'i. Under the es the inst or lap n cveAri-1,.

The reverse arm is formed with latch lever, 36. Lugs, 44 and 43, formedon v the frontandrear sides of the latch lever.-

messes ment of the lap lever, 34, in the cab, will.

Y Fig. 5, will lift the latch block by the resultant upward movement ofthe pin,"64 or 64, as the case may be The same movement causes thereverse arm, 8, to creep 0r swing .slowly until the teeth-ref the latchblock again coincide with the quadrant notches, thereby permitting thesprings, 65,

,to lock the reverse shaft mechanism on the main quadrant, 17, with thelap lever, 34, bell crank, 50, and controlling valve, 20, in midpositions. This creeping lap movement is ,made without unlocking thelatch lever, 36, in thecab, andis limited, in either direction, to oneor -two quadrant notches,

in order to aliordthe refinement desired for operation in passenger orsimilar-service.

In order to obtain a greater and more Fig. 11, the latch lever, 36, isfreed, and

readily follows after the opening ofv theport, 24, or the porn-25, asthe case may be. At any desired position of the reverse gear, the laplever latch handle, 45, is freed, whereupon the valve, 20,.is moved tocreeping position, and when the teeth of the latch block, 60, againcoincide with the quadrant notches, the springs, 65, lock the latchblock, and the valve, 20, and lap lever, 34, are thrown into midposition. This movement securely locks the entire reverse mechanism atthe reverse shaft, arm, thereby eliminating the lost motion, springingof parts,,and other objections which are present in the ordinaryreversing gear, in which long and springy reach rods intervene betweenthe valve gear and a locking mecha nism consisting of quadrant notcheslocated in the cab, which is sometimes fifteen to twenty five feetdistant from the reverse shaft. Q

In the application of my improvement in locomotives having boilers ofexceptionally large size, it may become necessary to locate the-liquidreservoirs, 19, 19, below the reversing cylinder, 16, as shownxin Figs.1 to 4 inclusive, and Figs. 23to'25inclusive. In such case, liquidconduits, 66, 66*, are pro vided, said'conduits forming elongatedcylinder ports leading from-the ports, 31 and'.

of air back of the piston, which would" cause aloss of control. of. thereverse gear, is

prevented. .The liquid reservoirs are, connected at top with the airports, 26 and 27, and at the bottom with the ports, 24 and 25, which arecontrolled by the valve, 20,"ns before described. 7 The cab quadrant,39, is provided with thesame number of notches as the main quadrant, 17,so that the position of the engineers lap lever, 34, will always correspondwith that of the reverse shaft arm, 8 Asshown in Figs. 2 to 7,inclusive, the pivotal connection of the bell crank, 51, and link, 52,is normally in the axial line of the reverse shaft, 1, and the valve,20, is then in mid position. By the vertical location of go the valve,20, with its lower end submerged in oil, all air leakage is prevented bythe Y sealing of the stuffing box, 70, with oil. The stufling box, 71,of the piston rod of the reversing cylinder, is also oil sealed. Instead5 of providing separatecreeping ports, as in the preferred constructionillustrated, narrow slots, extending from the larger liquid. reservoirports, 24 and 25, may be used to perform the same function. 4 0

Assuming the mechanism to be in midgear, as shown in the drawings, theoperation of the appliance is as follows: In order to move the valvegear into full forward position, the engineer moves the lap lever, 5 34,toward the right to the position shown by the right hand. dotted linesin Fig. 11. This movement is transmitted, through the reach rod, 37 theelbow lever, 50; lihk, 49; floating bell crank, 51; floating rod, 52;and valve arm, 30, to the controlling valve, 20, which is moved towardthe left to its creeping positiomindicated in Fig. 21. When in thisposition, air, entering the pressure supply port, 33, at the top of thevalve, is admitted' to the liquid reservoir, 19*, by the port, 26, beingbrought into communication with the pressure supply port, and air isexhausted from the reservoir, 1'9, through the port, 27 and exhaustport, 33, (see Fig. 22). The valve cavity, 22, near the lower end of thevalve, 20, now communicates wit-h to one or two notches of the lnainquadrant, '17, Figs. 5'and 6. As previously described,

a movement of the elbow lever, 50, to the ,ri'ghtor the left from itsmid,position, in *either case unlocks or lifts th main latch,

60, and thepiston is consequently permitted 1 to move the reverse. arm,8, downward,

which is in the direction of forward-.gears ho 20, to the left, (in thesame direction as The continued movement of the piston to theposition offull forward gear is efiected by pressing the latch handle, 45, so as torelease the latch lever, 36, and interlock it with the lap lever, 34,upon which the two levers are moved together to the right toward fullforward position. This movement, through the reach rod, 38; combinationarm, 53; floating bell crank, 51; and floating rod, 52, moves thecontrolling valve,

before), to full speed position, indicated by dotted lines in Fig. 21.When in this position, thevalve cavity, 22, establishes communicationbetween the ports, 24, and 31, and the cavity, 22, establishescommunication between the ports, 25, and, 32. A much more rapid flow ofli uid is thereby permitted from the reservoir, 19", into the right handend of the'cylinder, 16, through the port, 32, and frhm the left handside of the piston of said cylinder, through the port, 3l, into thereservoir, 19. Upon the release of thelatch handle, 45,'and lap lever,34, the latch lever, 36, becomes instantly locked,

V and the valve, 20, is thereby moved at once to creeping position, inwhich it remains until the continued slow movement of the reverse shaftarm, 8, downward, and accompanying movement of the upper arm, 8, towardthey left in Fig. 5, causes the main latch, 60, to stand directly overthe notches in the quadrant, 17, and the sudden downward movement ofsaid latch moves the elbow lever, 50, to mid position. The'lap lever,34, and valve, 20, are thereby moved to mid position. The valve is, thenagain in the position shown in the drawings, and the levers, 34, and 36,are in the same relative positions as shown in Fig. 11, but at theextreme right of the quadrant, 39. The arm,

8, and the several levers, 53, 50, 49, and 51,

will also be in the same relative positions, but would incline towardthe left 1n Fig. 5. In order to move the valve gear to full backwardposition, from full forward or any other position, the lap lever, 34, is

' manipulated as before, exce t that'its movement is to theleft, to.full ack position on the quadrant, 39. The reverse arm, 8*, is then andthereby moved to the extreme right i on the quadrant, 17, Fig.-fi.---=As before indicated, it isnot necessary to unlatch the latchlever, 36,"when it is desired to move the reverse arm, 8, one or twonotches to the right or left from the osition .of the latch.lever, asthis can be one by merely moving the lap lever, 34, to the rightor leftdottedposition, without manipulating the latch handle, 45. To move atslow speed through a considerable distance, or entire reversal, the laplever, 34, is moved to one or the other dotted position, and the latchlever, 36, released. The. latch lever is not forced, but is allowed tofollow the slow movement of the reverse arm, 8, that is to say, therelative positions of the reverse arm, 8*, and the members, 50, 51, and53, are not disturbed after the controlling valve has been inovedtocreeping position. A slight increase in speed will be obtained by slightpressure on the lap lever, 34, in the direction of its motion, and, infact, any speed, from the minimum to the maximum, may be obtained inthis manner.

Various structural modifications of the embodiment of my inventionherein desaid reversing mechanism, and manually operable means forcontrolling said reversing mechanism.

2. In a valve reverse gear, the combination of a cross head guidesupport, a power valve gear reversing mechanism attached thereto, avalve gear member coupled to said reversing mechanism, manually operablemeans for controlling said reversing mechanism, and manually operablemeans for locking said controlling means.

3. In a valve reverse gear, thevcombination of a cross head guidesupport, a power gear reversing mechanism attached thereto, v

a valve gear member coupled to said reversing mechanism, and a latchlever and quadrant for locking said controllin means.

4. In a valve reverse ear, is e combination of a cross head gui esupport, a valve reversing mechanism attached thereto, a valve gearmember coupled to said reversing mechanism, manually operable means forcontrollingfsaid reversing mechanism, and a locking member attached tosaid support and engaging with the reversing mechanism for the purposeof looking it in any desired position;

5. In a valve reverse gear, the combination of a cross head guidesupport, a valve reversmg mechanism attached thereto, a

valve gear member coupled to said reversing mechanism, manually operablemeans for controlling said reversing mechanism, and

manually operable members coupled thereto for locking saidreversingmechanism.

6. In a valve reverse; ear, the combina- .tion of a cross head gm esupport, a. valve reversing mechanism attached thereto, "a'

{alve gear member coupled'to said reversing n'echan1sm, manuallyoperable means for controlling said reversing mechanism, and

i-pmeae allel with the main frame, a cross head guide yoke having a padon one side abut- I ting against and secured to said flange, a

valve reversing appliance attached to said guide yoke, a valve gearmember coupled to said reversing appliance, and manually opappliance.

9. In a valve gear reversing mechanism,

erable means for controlling said reversing the combination of a mainframe cross tie, a cross head guide yoke secured thereto, a valvereversing apparatus attached to saidcross tie and guide yoke, a valvegear memi ber coupled to said reversing apparatus, and

manually operable means for controlling, H

i the combination of a main irame cross tie said reversing apparatus.

10. In a locomotive valve reversing mechanism, the combination ofasupport forl cross head guides, comprising two cross head guide yokesdisposed on opposite sides of the locomotive, anda frame cross tie rig-jidly connecting said yokes, a reversing apparatus mounted thereon, areverse shaft connected to said apparatus, valve gearmembers coupled tosaid reverse shaft, and manually operable means for controlling saidreversing apparatus 11. In a valve gear reversing mechanism, thecombination of a cross head guide support, a reversing cylinder attachedthereto, a piston reciprocating in said cylinder, a valve gear membercoupled to the piston, and

manually operable means for controlling the @movements of the piston.

" 12. Ina "valve gear-reversing mechanism,

the combination of a cross-head guide support, a reversing cylinderattached thereto,

. means.

a piston reciprocating in said cylinder, a valve gear member coupledv tothe piston, manually operable means for controlling the movements of thepiston, and manually op erable means for locking said controlling 13. Ina valve gear reversing mechanism, the combination of a cross head guidesupport, a reversing cylinder attached thereto,

manually 'operable mpans'tor controlling the movemehtsnd the piston, andalatchlever a piston reciprocating in said cylinder, a valve gear membercoupled to the piston,

intermediate filed to the piston.

and quadrant for locking said controlling means.

14. In a valve gear reversing mechanism, the combination of a cross headguide supthe piston, and manually operable means for controlling themovements of the piston.

16. In a valve gear reversing mechanism, the combination of a cross headguide support, a reversing cylinder attached thereto, a pistonreciprocating in said cylinder, a

link mounted in bearings on the guide support, a radius bartraversing insaid link,

connections coupling radius bar to the piston, and manually operablemeans for controlling the movements of the piston.

17. In a valve gear reversing mechanism,

having a vertical end flange, a cross head guide yoke having a pad onone side abutting against and secured to said flange, a reversingcylinder attached to the guide yoke above said pad, a pistonreciprocating in said cylinder, a valve gear member coupled to thepiston, and manually operable means for controlling the movements of thepiston.

18. In a valve gear reversing mechanism, the combination of a main framecross tie having a vertical .end flange, a cross head guide yoke havinga pad on one side abutting against and secured to said flange, a. gibformed on' said pad and engaging the flange of the cross tie, areversing cylinder attached to the guide yoke above said pad, a pistonreciprocating in said cylinder, a valve gear member coupled to thepiston, and manually operable means for controlling the movements of thepiston.

the

19. In a valve gear reversing mechanism,

the combination of a reversing cylinder, a piston reciprocatingthereiii'f'two liquid reservoirs communicating, by ports, with oppositeends of the reversing cylinder, means controlling said ports andcontrolling com-x municationbetween sai reservoirs and a source of fluidpressure supply, manually operable means for actuating said control lingmeans; and a valve gear fmember cou- '20. In a valve gear reversingmechanism,

the combination of a reversing cylinder, a

piston reciprocating therein, liquid reservoirs communicating, by ports,with o},- posite ends of the reversing cylinder, a control valvegoverning said ports and also controlling comm nitration between saidres ervoirs and a source 'of fluid pressure supply, manually operativemeans for actuating' said control valve, and a valve member coupled tothe piston.

21. In a valve reversing mechanism, the combination of a rev rsingcylinder, a piston reciprocating therein, two liquid reservoirscommunicating by ports with opposite ends of the reversing cylinder, acontrol valve governing said ports and also controlling communicationbetween said reservoirs and a source iiuid pressure supply, a manuallyoperable lever and connections for actuating said control valve, a

coupled to the piston, and

valve gear member operable lever an independent manually and connectionsfor moving the control valve independently of the movement oi: the

' valve gear member.

22. In a valve gear reversin mechanism the combmation of a reversingcylinder, a piston reciprocating therein, two l quid reservoirscommunicating by ports with oppo Y site ends of the reversing cylinder,a control valve governing said ports and also controlling communicationbetween said reservoirs and a source of fluid pressure supply, amanually operable lever and connections for actuating said controlvalve, a valve gear member coupled to the piston, an independentmanually "operable lever and con nections for moving the control valveindependently of the movement of the valve gear member, and lockingdevice for holding the levers in desired position.

23. In a valve reverse gear, the combine tion of a reversing motor, avalve controlling the supply and exhaust of motive fluid operable meansfor controlling said valve, a reverse shaft coupled to the motor, andautomatically operating means interposed between said valve and saidreverse shaft for moving said valve to its mid or neutral positionindependently of the movement of the reverse shaft. l V

. 2d. In a valve reverse gear, the combination of a reversing motor, avalve controlling the supply and exhaust of motive fluid to and fromsaid motor, manually operable means for controlling said valve, 2.reverse shaft coupled to the motor, automatically operated meansinterposed between said valve and said reverse shaftfor moving saidvalve to its mid or neutral position inde pendently of the movement ofthe reverse shaft, and means connecting said valve con trolling meansand said valve moving means.

25. In a valve reverse gear, the combinai tion of a reversing motor, avalve controli ling the supply and exhaust of motive fluid to and fromsaid motor, manually operable ;members for controlling said valve, areverse shaft coupled to the motor, automatically operating meansinterposed between said valve and said reverse shaft for moving' saidvalve to its mid or neutral position independently of the movement ofthe reverse shaft, and means for locking the reverse shaft when saidshaft has reached a position corresponding to a selected setting of thesaid manually operative controlling members.

26. In a valve reverse gear, the combinacoupled thereto, members forcontrolling said motor, coupled members connecting said motor with saidcontrolling members, a locking. latch and quadrant coupled to saidreverse shaft, automatically operating means coupled thereto for lockingsaid latch for each selected setting of said controlling members, andcoupled members interposed between said controlling members and saidlatch for unlcckin it when changing to a new setting. '27. In a valvereversing mechanism, the combination of a reversing motor, a valvecontrolling the supply and exhaust of motive fluid to and from saidmotor, manually operable means for controlling said valve, comprising aplurality of reach rods and connected hand levers, a reverse shaftcoupled to the motor, and connected members interposed between trollingmeans for moving said valve to or from its closed mid or neutralpositionindependently of the movement of the reverse snort.

28. In avalve reverse gear, the combinaling the supply and exhaust ofmotive fluid to and rom said motor, manually operable means forcontrolling said valve,'comprisinga pair of each rods located one withinthe other and connected hand levers, a reverse shaft coupled to themotor, and means for moving said valve to and from its closed mid orneutral position independently of the movement of the reverse shaft.

valve reverse gear, the combination of a reversing motor, means forcontrolling the supply and exhaust of motive fluid, a quadrant and amainlocking member engaging therewith, a reversing member coupled to themotor, 'manually operable means coupled to the fluid controllin' means,and comprising a lap lever, a late handle pivoted thereon, asupplementary quadrant, a latchlever, 21 supplcmenta mentary tion of areversing motor, a reverse shaft said valve and the con-' tion of areversing motor, a valve control,

latch mounted thereoii and coupled to the" latch handle and engaging thesupple-' quadrant for locking the latch lever, and coupling meansinterposed be tween the main locking member and the lap lever forunlocking said member. 30. In a valve reverse gear, the combination of areversing motor, means for conquadrant, a latch lever, asupplementary-glatch mounted thereon and coupled to the "latcliuhandle and engagingthe supplementary quadrant for locking the latch lever, coupling meansinterposed between the main locking member and the lap lever forunlocking said member, a pivotal bearing common to the lap and latchlevers, and

stops adapted to engage with the lap and latch levers, whereby the laplever is given a limited degree of movement independent of the latchlever. v 31. In a valve reverse gear, the combina tion of a reversingmotor, means for control ling the supply and exhaust of motive fluid, aquadrant and a main locking member engaging therewith, a reversingmember coupled to the motor, manually operable means coupled to thefluid controlling means, and comprising a lap lever, a latch handle pivoted thereon, a supplemental? quadrant, a latch le'ver, a supplementaryatch mounted thereon and coupled to the latch handle and engaging thesupplementary quadrant for locking the latch lever, coupling meansinter'posed between the main locking member and the lap leverforunlocking said member, and a stop attached to the lap lever and adaptedto lock the latch lever when the lap lever is in its mid positionrelatively to the latch lever.

32. In a valve reverse gear, the combination of a motor, manually oerable controlling means coupled there 0, areversing member coupled tothe motor, floating members pivotally mounted on said reversing member,a locking member, and a fixed notched member with which said lockingmember is adapted to engage when the reversing member coincides inposition with a selected setting of the controlling means, by a movementsubstantially perpendicular to that of the reversing member at the pointof engagement.

33. In 'avalve reverse gear, the combination of a motor, manuallyoperable controlling means coupled thereto, a reversing member coupledto .the motor, floating members pivotally mounted on said reversingmember, a guide fixed to the reversing memher, and extending in adirection radially from the axis of the movement of the reversingmember, a locking member sliding in said guide, and a fixed notchedmember with which said locking member is adapted toengage when thereversing member coincides in position with a selected setting of thecontrolllng means.

34. In a valve reverse gear, the 'combina- 5 tion of" a motor, manuallyoperable controlling means coupled thereto, a reversing.

member coupled to the motor,- said reversingmember comprislng a bellcrank formed on a reverse shaft, floating members pivot-ally mounted onone arm of the bell'crank, a locking member also mounted on said arm,and a fixed notched member with which said locking'member is adapted toengage, when the reversing member coincides in position with a selectedsetting of the cont-rolling means, by a movement substantiallyperpendicular to that of the reversing member at the point ofengagement.

35. Ir a valve reverse gear, the combination of a motor, manuallyoperable con: trolling means coupled thereto, a reversing member coupledto the motor,-floating'memhers pivotally mounted on saidreversing memberand comprising a two section articulated member, theupper section ofwhich is connected to the manually operable controlling means, and thelower sect-ion is in the form of a bell crank, and a supplementarymember coupled to the bell crank seetion, a locking member coupled tothe supplementary member and to the manually operable controlling'iiieans, "and a fixed notched member with which said locking member isadapted to engage. t

36. In a valve reverse gear,'the combination of a-reversing cylinder,.apiston reciprocating therein, ports communicating with opposite ends ofthe cylinder and with a source of fluid supply, and comprising mainports and communlcating adjacent creeping ports, a manually operablecontrol valve governing said ports, and a valve gear mem' ber coupled tothe piston.

37. .In a valve reverse gear, tion of a reversing cylinder, a pistonreciprocating therein, portsicommunicaiting with manually operable meansfor actuating said control valve, comprising a. lap lever and a latchlever, said. lap lever being coupled the combinax IIY tion. of areverseshaft, a reversing motor,v

to the control valve through a floating member whereby it governs thecreeping ports,

and said latch lever being also coupled, through floating members, tothe control valve to govern the main ports, and a valve gear membercoupled to the piston.

39.In a valve reverse gear, the combinaa valve cont-rolling the supplyand exhaust of motive fluid, manually operable means cpupled thereto, anoscillating member, coupled to said motor,- floating memberspivotallymounted on said oscillating mem- V ber'and coupled to said valve andmanually operable means, a bearing pivotallysup- 'rl;oseillatin glmember, and a reach reverse shaft.

40. 1112 valve reverse gear, the combinacopie l ot thls patent may beobtained for in cents each, by addressing the "commuter-o1 Patents,

tion of a reverse shaft, a reversingcylinder, a piston reciprocatingtherein, a valve for cont-rolling the supply and exhaust of motivefluid, manually operable means coupled thereto, a reversing oscillatinglever, floating members pivotally mounted thereon and coupled to saidmanually operable means, a

bearing pivotally supporting said oscillat- \in'g lever at one endthereof, a reach rod coupling the other end thereof to said reverseshaft, and amember coupling said piston to the oscillating member at apoint between the ends thereof, for the purpose of multiplying themotion of said piston when transmitted through the reach rod.

CHARLES I HEISLER.

Witnesses: I

INEZ J. AVERILL,

' MARY E. WORTH. I

v .Washington, DIG.

